EP3681363B1 - Article de nettoyage à touffes de fibres d'étoupe à pas différentiel - Google Patents

Article de nettoyage à touffes de fibres d'étoupe à pas différentiel Download PDF

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Publication number
EP3681363B1
EP3681363B1 EP18779172.8A EP18779172A EP3681363B1 EP 3681363 B1 EP3681363 B1 EP 3681363B1 EP 18779172 A EP18779172 A EP 18779172A EP 3681363 B1 EP3681363 B1 EP 3681363B1
Authority
EP
European Patent Office
Prior art keywords
tufts
cleaning article
rows
cleaning
longitudinal axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18779172.8A
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German (de)
English (en)
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EP3681363A1 (fr
Inventor
Nicola John Policicchio
Larry L. Huston
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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Publication date
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Publication of EP3681363A1 publication Critical patent/EP3681363A1/fr
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16—Cloths; Pads; Sponges
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/20—Mops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/38—Other dusting implements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C17/00—Embroidered or tufted products; Base fabrics specially adapted for embroidered work; Inserts for producing surface irregularities in embroidered products
    • D05C17/02—Tufted products

Definitions

  • the present invention relates to cleaning articles having irregularly spaced tufts of tow fibers for cleaning.
  • These disposable cleaning articles may include synthetic fiber tufts, called tow fibers, attached to a sheet as shown in 2006/0171764 ; 6,143,393 ; 6,241,835 ; 6,319,593 ; 6,329,308 ; 6,554,937 ; 6,774,070 ; 6,813,801 ; 6,830,801 ; 6,984,615 ; 7,003,856 ; 7,566,671 ; 7,712,178 ; 7,779,502 ; 7,870,635 ; 7,937,797 ; 8,146,197 ; 8,151,402 ; 8,161,594 , 8,186,001 ; 8,225,453 ; 8,245,349 ; 8,646,144 ; 8,528,151 ; 8,617,685 ; 8,646,144 ; 8,752,232 ; 8,756,746 ; 8,763,197 ; 8,793,832 ; 9,113,768 ; 9,198,553 and in commonly assigned 8,07
  • Disposable dusters having tow fibers may provide for wet cleaning as disclosed in 7,566,671 and in commonly assigned 7,803,726 and commonly assigned US 2008/0028560 .
  • But tow fibers may become matted when wet and not be suitable for cleaning a large or heavily wetted surface, such as a floor. Thus, dusters may not suitable for cleaning extremely large or heavily soiled surfaces.
  • Coatings such as wax and oil are generally disclosed in 6,550,092 ; 6,777,064 ; 6,797,357 ; 6,936,330 ; 6,984,615 ; 7,386,907 ; 7,560,398 ; 7,786,030 ; 8,536,074 ; 9,204,775 ; 9,339,165 .
  • Specific amphiphilic coatings are disclosed in 8,851,776 .
  • this invention addresses the problem of how to incorporate tow fibers into a hard surface cleaning article for capture and retention of the wide range of debris encountered in everyday cleaning by through the preferential placement of tow tufts on a cleaning sheet.
  • US 2010/036346 relates to a cleaning article.
  • the invention relates to a cleaning article, which is defined by independent claim 1. Further preferred embodiments are defined by the dependent claims.
  • the cleaning article comprises i.a. a cleaning article bounded by edges, having a longitudinal axis and comprising a carrier sheet, and a plurality of discretely spaced tufts of tow fibers joined to the carrier sheet. The tufts are disposed on a differential pitch.
  • the cleaning article 10 may be generally elongate, and rectangular, although other shapes are contemplated and feasible.
  • the cleaning article 10 may comprise two or more components joined in a laminate form to provide cleaning article 10 suitable for floor cleaning.
  • the cleaning article 10 may have a carrier sheet 12, which forms a chassis for attachment of other components thereto.
  • the cleaning article 10 has a plurality of tufts 15.
  • the tufts 15 are disposed in rows 30, with spaces 31 between the rows 30.
  • the spaces 31 may be arranged in lanes, providing distance between the rows 30 of tufts 15. This arrangement provides for advantageous debris collection and retention over the uniform tuft 15 geometry found in the prior art.
  • the cleaning article 10 may be disposable. By disposable it is meant that the cleaning article 10 may be used for one cleaning task, or generally for not more than several square meters, then discarded. In contrast, a reusable cleaning article 10 is laundered or otherwise restored after use.
  • the cleaning article 10 may have a longitudinal axis LA and a transverse axis TA orthogonal thereto.
  • the cleaning article 10, and respective components thereof, may have two longitudinal edges 20 parallel to the longitudinal axis LA and two transverse edges 22 parallel to the transverse axis TA.
  • the length of the cleaning article 10 is taken in the longitudinal direction.
  • the width of the cleaning article 10 corresponds to the transverse direction perpendicular to the length direction and disposed within the plane of the sheet 12.
  • the thickness is defined as the dimension in the Z-direction.
  • the XY plane is defined as the plane defined by the cleaning article 10.
  • the Z-direction of the cleaning article 10 is the direction perpendicular to the plane of the cleaning article 10.
  • the cleaning article 10 may have a length from 20 to 50 cm and a width of 10 to 20 cm.
  • the cleaning article 10 may particularly be 30 +/- 2 cm long by 14 +/- 2 cm wide, as measured at the greatest dimensions, in order to fit the head 74 of a typical cleaning implement 70, as discussed below.
  • An optional core may particularly have a width of 6.5 +/- 2 cm and a length of 26 +/- 2 cm.
  • other shapes are feasible and within the scope of the present invention.
  • the cleaning article 10 may have an outwardly facing cleaning side and an attachment side opposed thereto.
  • the cleaning article 10 is intended to be used dry, although wet cleaning is contemplated and within the scope of the present invention.
  • the cleaning article 10 may also have an optional absorbent core for wet cleaning.
  • the cleaning article 10 may comprise a construction of at least one tow fiber tuft 15 and at least one carrier sheet 12.
  • the tow fiber tuft 15 and carrier are joined in face-to-face relationship with at least one permanent bond 38 to form a laminate.
  • the tow fiber tuft(s) 15 may be distended from and protrude outwardly from the plane of the carrier sheet 12.
  • the tufts 15 may be disposed directly on a carrier sheet 12.
  • the tufts 15 may be bonded to a precursor sheet 13, which in turn, is joined to a carrier sheet 12 as described below.
  • the carrier sheet 12 and/or precursor sheet 13 may particularly comprise a synthetic nonwoven.
  • a carrier sheet 12 and/or precursor sheet 13 having synthetic fibers provides for convenient joining of the tow fibers thereto.
  • Nonwovens include spun bonded, carded and airlaid materials, as are known in the art and made from synthetic fibers.
  • a suitable nonwoven sheet may be made according to commonly assigned 6,797,357.
  • the carrier sheet 12 and/or precursor sheet 13 may optionally comprise a polyolefinic film, or a microfiber and be liquid pervious or impervious.
  • the carrier sheet 12 and/or precursor sheet 13 may comprise cellulose, to provide absorptive capacity.
  • a cellulosic sheet may have permanent wet strength resin added thereto, as is known in the art.
  • the carrier sheet 12 and/or precursor sheet 13 may preferably comprise a mixture of cellulosic and synthetic fibers, to provide both absorptive and barrier properties, and for convenient joining of the cleaning strip element 25.
  • cellulosic it is meant that the component comprises a predominant weight percentage of cellulosic fibers.
  • the carrier sheet 12 and/or precursor sheet 13 may comprise a hydroentangled spunbond nonwoven with a basis weight of 20 to 80 gsm. A 45 gsm nonwoven from Avgol Nonwovens of Tel-Aviv, Israel has been found suitable.
  • the carrier sheet 12 and/or precursor sheet 13 may comprise a laminate of two, three or more plies joined together using adhesive 32 and/or thermal bonds 38 as are known in the art.
  • Optional attachment stripes of loop or similar material may be joined to the attachment side to removably join the cleaning article 10 to a handle 72 or implement 70.
  • One or more plies may comprise a microfiber, particularly a nylon microfiber, as is known in the art.
  • the cleaning article 10 may have an optional cleaning strip element 25.
  • the carrier sheet 12 may serve as a chassis for attachment of the cleaning strip element 25 thereto.
  • the cleaning strip element 25 may comprise a polyolefinic film, having integral protrusions as disclosed in commonly assigned 8,407,848 or a rope of tow fibers.
  • the cleaning strip element 25 may preferably comprise a mixture of wet laid fibers formed into a tissue which is bonded onto a synthetic nonwoven using a process such as spun lace or hydroentangling.
  • the cleaning element 25 may particularly comprise a 23 gsm tissue with a 17 gsm polypropylene spunbond as a composite, sold under the name Genesis tissue by Suominen of Helsinki, Finland.
  • the cleaning strip element 25, precursor sheet 13 and/or the carrier sheet 12 may alternatively or additionally comprise nylon microfiber.
  • the tow fibers, and tufts 15 formed therewith may be synthetic, comprising polymers including polyester, polypropylene, polyethylene, bio-derived polymers such as polylactic acid, bio-polyethylene, bio-polyester and the like.
  • Tow fibers may also include fibers from natural sources such as cellulose, cellulose acetate, flax, hemp, jute and mixtures thereof manufactured wherein the individual fibers are relatively long strands manufactured in bundles.
  • Preferred tow fibers are bicomponent fibers having a PP or PE core with a polyethylene sheath.
  • the tow fibers may have a denier per filament of 1.5 to 8.0 and a total crimped denier in the tow band of 15,000 to 95,000.
  • Tow fibers are a component in Swiffer® DustersTM sold by the instant assignee.
  • the carrier sheet 12, precursor sheet 13 and tow fiber tuft(s) 15 may be joined by a plurality of permanent bonds 38.
  • the bonds 38 are intended to minimize or prevent stray or dislodged tow fibers from becoming loose.
  • Such sheets 12 and tow fiber tuft(s) 15 may typically be directly superimposed on one another, with or without intervening members or components therebetween.
  • the bonds 38 may be ultrasonic bonds 38, adhesive 32 bonds 38, thermal bonds 38 or a combination thereof, as are known in the art.
  • the cleaning article 10 may have discrete tow fiber tufts 15 disposed in rows 30.
  • the rows 30 of tufts 15 may be cascaded to form a grid of tufts 15.
  • the rows 30 may be parallel to the transverse axis, and generally aligned in the back and forth direction in ordinary use. This arrangement provides the benefit that larger debris can be intercepted in the space between the rows 30 during ordinary use, while smaller debris is intercepted by the tufts 15.
  • rows 30 While six parallel and equally spaced rows 30 are shown, the invention is not so limited. Prophetically from two to 15 rows 30 could be used, with equal or unequal spacing and equal or unequal width and equal or unequal tuft 15 density.
  • the rows 30 may be mutually parallel to the transverse axis, mutually skewed thereto or be mutually skewed relative to other rows 30.
  • adhesive 32 may be disposed in the spaces 31 between the rows 30.
  • the rows 30 may extend throughout the transverse direction as shown, or be interrupted at the longitudinal axis.
  • the tufts 15 may be spaced on an inter-row pitch T1 of 1 to 3 cm, a center to edge tuft 15 distance T2 of 0.5 to 1.5 cm, and a transverse tuft 15 spacing T4 of 0.1 to 0.5 cm.
  • the rows 30 may have a length in the transverse direction C1 of 8 to 16 cm and a spaced apart in the longitudinal direction C2 0.5 to 1.5 cm.
  • This geometry provides the benefit that when used with a common sized cleaning implement 70, such as the Swiffer® SweeperTM implement 70 sold by the instant assignee, the rows 30 and spaces 31 may wrap the nose of the head 74 of the cleaning implement. Wrapping the nose of the head 74 of the cleaning implement 70 is believed to improve cleaning along walls and baseboards.
  • this cleaning article 10 may be made by providing a precursor sheet 13 as in Step 1. Tow fibers are stretched across the precursor sheet 13 in the longitudinal direction, as shown in Step 2. The tow fibers are bonded to the precursor sheet 13 in the transverse direction, as shown in Step 3. Tufts 15 are created by slitting the precursor sheet 13 between the bonds 38, as shown in Step 3. The precursor sheet 13 and tufts 15 are cut into discrete rows 30 and separated, as shown in Steps 4 - 5.
  • a carrier sheet 12 is provided, as in Step 6.
  • the carrier sheet 12 is coated with adhesive 32, as shown in Step 7.
  • the rows 30 of tufts 15 are disposed on the carrier sheet 12 and held in place by the adhesive 32, as shown in Step 8.
  • the tufts 15 may be fluffed with blowing air to enlarge the tufts 15, as in Step 9.
  • the cleaning article 10 may have discrete tow fiber tufts 15 disposed in variable width rows 30.
  • the variable width rows 30 may be generally parallel to the transverse axis, and generally aligned in the back and forth direction in ordinary use. Between the rows 30 of tufts 15 are variable width spaces 31. This arrangement provides the benefit that larger debris can be intercepted in the space 31 between the rows 30 during ordinary use, while smaller debris is intercepted by the tufts 15.
  • the variable width provides the benefit that larger debris can transversely enter the space 31 further and further until intercepted by the adjacent rows 30.
  • the spaces 31 may taper inwardly as the longitudinal axis is approached.
  • While four generally parallel and equally spaced rows 30 are shown, the invention is not so limited.
  • Prophetically from two to 15 rows 30 could be used, with equal or unequal spacing and equal or unequal variable widths and equal or unequal tuft 15 density.
  • the rows 30 may be mutually parallel to the transverse axis, mutually skewed thereto or be mutually skewed relative to other rows 30.
  • adhesive 32 may be disposed in the spaces 31 between the rows 30.
  • the rows 30 may both extend throughout the transverse direction and be interrupted at the longitudinal axis.
  • the tapered intra-tuft 15 spaces 31 between the tufts 15 provide the benefit that no tufts 15 are interrupted by the spaces 31. Thus all tufts 15 can be selected to be of a size large enough for efficacious cleaning.
  • the spaces 31 may have an opening T1 of 1 to 3 cm.
  • the rows 30 may have a width at the edge of the cleaning article 10 T2 of 0.5 to 1.5 cm, and width nearer the end of the space 31 T3 of 0.5 to 1 cm.
  • a transverse tuft 15 spacing T4 of 0.1 to 0.5 cm may be used.
  • the spaces 31 may have a length in the transverse direction C1 of 3 to 8 cm and be spaced apart in the longitudinal direction C2 0.5 to 1.5 cm.
  • the rows 30 may be longitudinally separated by a distance S1 of 2 to 8 cm.
  • This geometry provides the benefit that when used with a common sized cleaning implement 70, such as the Swiffer® SweeperTM implement 70 sold by the instant assignee, the rows 30 and spaces 31 may wrap the nose of the head 74 of the cleaning implement. Wrapping the nose of the head 74 of the cleaning implement 70 is believed to improve cleaning along walls and baseboards. The amount of tufts 15 on the nose can be controlled by and is inversely proportional to the width of the spaces 31.
  • this cleaning article 10 may be made by providing a precursor sheet 13 as in Step 1. Tow fibers are stretched across the precursor sheet 13 in the longitudinal direction, as shown in Step 2. The tow fibers are bonded to the precursor sheet 13 in the transverse direction, as shown in Step 3. Tufts 15 are created by slitting the precursor sheet 13 between the bonds 38, as shown in Step 3. The precursor sheet 13 and tufts 15 are cut to provide prospective spaces 31, as shown in Step 4. The waste material of precursor sheet 13 and unused tufts 15 are vacuumed away, to yield the spaces 31, as shown in Step 5.
  • a carrier sheet 12 is provided, as in Step 6. The carrier sheet 12 is coated with adhesive 32, as shown in Step 7. The precursor sheet 13 and tufts 15 are disposed on the carrier sheet 12 and held in place by the adhesive 32, as shown in Step 8. Optionally the tufts 15 may be fluffed with blowing air to enlarge the tufts 15, as in Step 9.
  • the cleaning article 10 may have rows 30 defined by trans-tuft 15 spaces 31. These rows 30 and spaces 31 may be disposed in a herring bone pattern.
  • the spaces 31 and rows 30 may be of constant width as shown or discrete tow fiber tufts 15 may be disposed in variable width rows 30.
  • the rows 30 may be generally skewed to the transverse axis, and generally mis-aligned in the back and forth direction in ordinary use. Between the rows 30 of tufts 15 are constant or variable width spaces 31. This arrangement provides the benefit that larger debris can be intercepted in the space 31 between the rows 30 during ordinary use, while smaller debris is intercepted by the tufts 15.
  • the skewed row 30 direction provides the benefit that captured debris is not dislodged and released during back and forth movements during ordinary cleaning.
  • While seven generally parallel and equally spaced rows 30 are shown, the invention is not so limited. Prophetically from two to 15 rows 30 could be used, with equal or unequal spacing and equal or unequal widths and equal or unequal tuft 15 density.
  • the widths of the rows 30 and spaces 31 may be constant or variable.
  • the rows 30 adjacent one longitudinal edge may be mutually skewed to the transverse axis or be mutually skewed relative to other rows 30.
  • the rows 30 on opposed longitudinal edges may be herring bone shaped, may be mutually parallel, or may be disposed in any other suitable pattern.
  • adhesive 32 may be disposed in the spaces 31 between the rows 30.
  • the rows 30 may extend throughout the transverse direction or be interrupted at the longitudinal axis.
  • the trans-tuft 15 spaces 31 provide the benefit that different sizes of tufts 15 are formed, for different sizes of debris piles. Thus, if a smaller tuft 15 becomes loaded with debris, a larger tuft 15 can intercept debris later encountered during the cleaning process.
  • the spaces 31 may have an opening T1 of 0.5 to 3 cm.
  • the row 30 may have a width at the edge of the cleaning article 10 T2 of 0.5 to 1.5 cm.
  • the spaces 31 may have a length C1 of 3 to 8 cm.
  • the rows 30 may be longitudinally separated by a transverse distance S1 of 2 to 8 cm.
  • This geometry provides the benefit that when used with a common sized cleaning implement 70, such as the Swiffer® SweeperTM implement 70 sold by the instant assignee, the rows 30 and spaces 31 may wrap the nose of the head 74 of the cleaning implement. Wrapping the nose of the head 74 of the cleaning implement 70 is believed to improve cleaning along walls and baseboards. The amount of tufts 15 on the nose can be controlled by and is inversely proportional to the width of the spaces 31.
  • this cleaning article 10 may be made by providing a precursor sheet 13 as in Step 1. Tow fibers are stretched across the precursor sheet 13 in the longitudinal direction, as shown in Step 2. The tow fibers are bonded to the precursor sheet 13 in the transverse direction, as shown in Step 3. Tufts 15 are created by slitting the precursor sheet 13 between the bonds 38, as shown in Step 3. The precursor sheet 13 and tufts 15 are cut to provide prospective spaces 31, as shown in Step 4. The waste material of carrier sheet 13 and unused tufts 15 are vacuumed away, to yield the spaces 31, as shown in Step 5.
  • a carrier sheet 12 is provided, as in Step 6. The carrier sheet 12 is coated with adhesive 32, as shown in Step 7. The precursor sheet 13 and tufts 15 are disposed on the carrier sheet 12 and held in place by the adhesive 32, as shown in Step 8. Optionally the tufts 15 may be fluffed with blowing air to enlarge the tufts 15, as in Step 9.
  • the tufts 15 may be disposed on a differential pitch.
  • the pitch is the distance between centers of tufts 15 taken parallel to the longitudinal axis or parallel to the transverse axis. As shown on imaginary lines 99A and 99B, the pitch may change as the longitudinal axis is approached, providing a differential pitch, and thus a differential tuft 15 density.
  • the pitch may increase, and density decrease, as a longitudinal edge (parallel to the longitudinal axis) is approached, or vice versa. This arrangement provides the benefit that debris is more easily entrapped and retained by the cleaning article 10.
  • a precursor sheet 13 having cutouts may be used without a carrier sheet 12. This arrangement provides the benefit of conserving material, but may sacrifice strength.
  • the pitch, and thus tuft 15 density may be constant at any predetermined spacing from the longitudinal edge.
  • the tufts 15 may be bilaterally staggered relative to the longitudinal axis and transverse axis.
  • the tufts 15 may fully overlap the position of adjacent tufts 15, in both directions, to provide adequate spacing therebetween and debris retention during back and for the sweeping.
  • each tuft 15 having a maximum diameter, or other maximum dimension taken parallel to the longitudinal axis, and the pitch between adjacent tufts 15 in a particular row 30 may be greater than the maximum diameter/dimension.
  • the cleaning article according may be tri-folded generally parallel to said longitudinal axis, as is common in the art.
  • This arrangement provides two outboard trisections, commonly used for attachment to the head 74 of a cleaning implement.
  • tufts 15 may be disposed in at least one of, and optionally both of, the outboard trisections, to provide for cleaning along walls and baseboards.
  • the cleaning article 10 may have discrete tow fiber tufts 15 disposed in rows 30 with at least one longitudinal space 31 therebetween.
  • the rows 30 may be parallel to the longitudinal axis, and generally aligned across the back and forth direction in ordinary use. This arrangement provides the benefit that larger debris can be intercepted in the space 31 between the rows 30 during ordinary use, while smaller debris is intercepted by the tufts 15.
  • the space 31 between the rows 30 can be used to capture debris during turning to the side or by using a stomp motion at the end of a cleaning process. This arrangement provides efficacious hair pickup and is suitable for households having pets.
  • rows 30 While two parallel and equally sized rows 30 are shown, the invention is not so limited. Prophetically from two to 10 rows 30 could be used, with equal or unequal spacing and equal or unequal width and equal or unequal tuft 15 density.
  • the rows 30 may be of constant or variable width.
  • the rows 30 may be mutually parallel to the longitudinal axis, mutually skewed thereto or be mutually skewed relative to other rows 30.
  • adhesive 32 may be disposed in the spaces 31 between the rows 30.
  • the rows 30 may extend throughout the longitudinal direction as shown, or be interrupted at the transverse axis.
  • the rows 30 may have a width S1 of 2 to 8 cm.
  • the space 31 between the rows 30 S2 may be 1 to 4 cm.
  • the outboard rows 30 may have a width S1 of 1 to 8 cm.
  • the center row 30 may have a width S3 of 1 to 6 cm.
  • the space 31 between the rows 30 S2 may be 0.5 to 4 cm.
  • This geometry provides the benefit that when used with a common sized cleaning implement 70, such as the Swiffer® SweeperTM implement 70 sold by the instant assignee, the rows 30 and spaces 31 may wrap the nose of the head 74 of the cleaning implement. Wrapping the nose of the head 74 of the cleaning implement 70 is believed to improve cleaning along walls and baseboards. Wrapping the nose of the cleaning implement is believed to improve cleaning along walls and baseboards.
  • the cleaning article 10 of Fig. 4.1 may be made by providing a precursor sheet 13 as in Step 1. Tow fibers are stretched across the precursor sheet 13 in the longitudinal direction, as shown in Step 2. The tow fibers are bonded to the precursor sheet 13 in the transverse direction, as shown in Step 3. Tufts 15 are created by slitting the precursor sheet 13 between the bonds 38, as shown in Step 3. The precursor sheet 13 and tufts 15 are cut into discrete rows 30 and separated, as shown in Steps 4 - 5.
  • a carrier sheet 12 is provided, as in Step 6.
  • the carrier sheet 12 is coated with adhesive 32, as shown in Step 7.
  • the rows 30 of tufts 15 are disposed on the carrier sheet 12 and held in place by the adhesive 32, as shown in Step 8.
  • the tufts 15 may be fluffed with blowing air to enlarge the tufts 15, as in Step 9.
  • the cleaning article 10 may optionally have strips 17.
  • the strips 17 have an aspect ratio of length to width greater than 1.
  • an elongate tow fiber rope oriented generally parallel to and optionally coincident the longitudinal axis LA may be used.
  • a cleaning strip element 25 may be disposed partially on or throughout the longitudinal axis LA.
  • a combination of intra-tuft 15 spaces 31 and trans-tuft 15 spaces 31 may be used to create rows 30 of constant width, variable width, equal and unequal spacing, parallel to the longitudinal axis, parallel to the transverse axis and skewed relative thereto.
  • Differential pitch may be achieved as a function of tuft 15 size.
  • the tufts 15 may increase in size, and thus pitch, as the longitudinal axis is approached.
  • the tufts 15 may maintain constant pitch relative to the longitudinal axis, and decrease in size as one or both longitudinal edges are approached.
  • the tufts 15 may increase in size and decrease in pitch as the longitudinal axis is approached.
  • One tuft 15 may touch an adjacent tuft 15 or be spaced therefrom.
  • differential spacing between adjacent tufts 15 may simply be accomplished by disposing different tufts 15, and preferably rows thereof, on different pitches. This arrangement provides the benefit that the differential spacing may be obtained without complex and extraneous manufacturing steps.
  • the differential pitch increases by at least 25%, 50%, 100% or 200% of the smaller pitch under consideration. This difference is believed to be suitable for entrapment of large debris, while a smaller difference may not be efficacious.
  • the differential pitch of the tufts 15 may be accomplished by differential spacing of the bonds 38. This arrangement advantageously results in different sizes of tufts 15. If the cuts are not aligned and the bonds 38 are aligned without an intervening cut, this arrangement advantageously also provides bridge portions of bonded tow fibers between the tufts 15.
  • any of the carrier sheet 12, precursor sheet 13 and/or tufts 15 15 of tow fibers may optionally be completely or partially coated with adhesive 32, wax, Newtonian oils and/or non-Newtonian oils or a combination thereof, in order to improve cleaning and increase retention of absorbed debris.
  • the tow fiber tuft 15, in any configuration may be coated with a mineral oil coating.
  • the coating may comprise a mixture of mineral oil and surfactant at a ratio of about 90% to 10% oil to surfactant.
  • the surfactant provides the benefit inducing the oil to wet the tow fibers by reducing the surface energy.
  • the surfactant may be a non-ionic surfactant.
  • the carrier sheet 12 and precursor sheet 13 may both comprise a nonwovens and be ultrasonically bonded. Or the carrier sheet 12 and precursor sheet 13 may be adhesively 32 bonded. This arrangement provides the benefit that if the carrier sheet 12 is adhesively 32 coated throughout, adhesive 32 will be disposed in the spaces 31 between the rows 30 and be available for collection and retention of debris.
  • the spaces 31 between the tufts 15 may range from 0.3, 0.5, 0.7, 1, 1.5 cm to 8, 7, 6, 5, or 4 cm, and particularly from 0.5 to 3 cm, 0.5 to 2.5 cm, 0.8 cm to 2 cm, or 1 to 1.5 cm or any range therebetween, and encompassing any of the aforementioned endpoints in any combination.
  • a space 31 having this width between adjacent tufts 15 may form a lane between adjacent tufts 15 and is believed to be suitable for picking up large debris which is not always captured by the tow fibers.
  • the lane may form a straight line, to allow entry of debris.
  • the width of a space 31 is measured between the closest portions of adjacent tufts 15 when the tufts are in a normal configuration as lightly compressed against a target surface.
  • This spacing may provide a differential pitch between tufts 15.
  • the differential pitch is measured in a straight line 99A, 99B between the centers of adjacent tufts 15 and is independent of the size of the tufts 15.
  • the lines 99A, 99B may be parallel to the longitudinal axis LA, the transverse axis TA or skewed.
  • the pitch may have a difference of at 25%, 50%, 100% or 200% of the smaller pitch under consideration to provide for efficacious collection of both large and small debris.
  • the cleaning article 10 may be removably attachable to a cleaning implement 70 for use with dry, wet and/or prewetted cleaning, depending upon the particular task.
  • the cleaning implement 70 may have a head 74 for receiving the cleaning article 10 and an elongate handle 72 joined thereto.
  • a typical floor cleaning implement 70 has a handle 72 for grasping by the user and a head 74 attached thereto, and preferably pivotally attached thereto. The head 74 moves against the floor, or other target surface.
  • the cleaning article 10 may be removably attached to the bottom of the head 74.
  • An attachment system may provide for removable attachment of the cleaning article 10 to a suitable and optional handle 72. Removable attachment of the cleaning article 10 to the implement 70 may be accomplished using adhesive 32, hook and loop systems, elongate sleeves, grippers, etc. Grippers and a suitable cleaning implement 70 are disclosed in commonly assigned US6,484,356 .
  • the cleaning article 10 may optionally be used with a cleaning solution or other solution usable for other purposes such as treating the surface for appearance or disinfectant, etc.
  • a floor cleaning implement 70 may allow for cleaning of the floor while the user is upright, and may also provide for spraying of cleaning solution or other liquid to the floor from a reservoir 75 through one or more nozzles 76.
  • Suitable spray implements 70 are disclosed in commonly assigned US5,888,006 ; US5,988,920 ; US6,842,936 ; US7,182,537 ; US7,536,743 ; US7,676,877 and US8,186,898 .
  • the cleaning solution may be pre-applied to the cleaning article 10, creating a pre-moistened cleaning article 10 or may be contained within a separate reservoir 75 for dosing onto the cleaning article 10 and/or target surface.
  • the cleaning solution may comprise a majority water, and at least about 0.5, 2, 5 or 10 weight percent solids, or at least about 30 or 50 weight percent aqueous solvents, non-aqueous solutions or mixtures thereof.
  • a suitable implement 70 having an optional vacuum is disclosed in US7,137,169 .
  • the implement 70 may have a handle 72 and head 74 used in fixed relationship and comprising one or more tines 73.
  • the tines 73 may be inserted into sleeves in the cleaning article 10. This arrangement allows the cleaning article 10 to be conveniently used as a duster for cleaning small object and tights spaces 31.
  • Suitable implements 70 for a duster type cleaning article 10 are disclosed in commonly assigned US 8,578,564 and US674,949 S .
  • the cleaning article 10 may be used with and removably attached to an autonomously moving robot or drone.
  • robots and drones for use with the cleaning article of the present invention are found in commonly assigned patents US6,941,199 ; US6,810,305 ; US6,779,217 ; US6,481,515 ; 6,459,955 and Serial No. US14/992,195, filed Jan. 11, 2016 , P&G Case 14189.
  • robots for use with wet and dry cleaning are found in US7,389,156 ; US8,774,966 and US8,855,813 .
  • a data control system may be utilized with the cleaning article 10, as described in US7,431,524 .
  • the cleaning article 10 may also be used manually, without a handle 72 or implement 70. If desired, various cleaning articles 10 described herein may be packaged and sold in a kit. This arrangement provides the benefit that the user has a choice of different cleaning articles 10 for different tasks. For example, if desired, plural sizes of the cleaning articles 10 may be sold together as a single kit. This arrangement allows the user to select the particular cleaning article 10 best suited for the immediate task.

Landscapes

  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Claims (14)

  1. Article de nettoyage (10) délimité par deux bords longitudinaux (20), deux bords transversaux (22), ayant un axe longitudinal (LA), un axe transversal (TA) perpendiculaire à celui-ci et comprenant :
    une feuille de support (12), et
    une pluralité de touffes individuellement espacées (15) de fibres d'étoupe jointes à ladite feuille de support (12), dans lequel une pluralité desdites touffes (15) sont disposées sur un pas différentiel,
    caractérisé en ce que,
    l'article de nettoyage est plié en trois, généralement parallèle audit axe longitudinal (LA), pour avoir deux trisections extérieures et comprenant des touffes (15) disposées dans l'une et l'autre desdites trisections extérieures.
  2. Article de nettoyage (10) selon la revendication 1, ledit pas pris parallèle audit axe longitudinal (LA) augmentant à mesure qu'un bord longitudinal (20) dudit article de nettoyage (10) se rapproche.
  3. Article de nettoyage (10) selon la revendication 2, ledit pas augmentant à mesure qu'un bord longitudinal (20) dudit article de nettoyage (10) se rapproche et dans lequel ledit pas est constant au niveau de n'importe quel espacement prédéterminé à partir dudit bord longitudinal (20).
  4. Article de nettoyage (10) selon l'une quelconque des revendications 1, 2, ou 3 dans lequel lesdites touffes (15) sont bilatéralement décalées.
  5. Article de nettoyage (10) selon une quelconque revendication précédente dans lequel ledit article de nettoyage est généralement rectangulaire et dans lequel ledit pas diminue à mesure que ledit axe longitudinal (LA) dudit article de nettoyage (10) se rapproche.
  6. Article de nettoyage (10) selon l'un quelconque parmi 1, 2 ou 4 dans lequel lesdites touffes (15) sont disposées en rangées (30), lesdites rangées (30) étant orientées à plus ou moins 45 degrés dudit axe transversal (TA).
  7. Article de nettoyage (10) selon une quelconque revendication précédente dans lequel lesdites touffes (15) sont disposées en rangées (30), lesdites rangées (30) étant orientées généralement perpendiculaires audit axe longitudinal (LA).
  8. Article de nettoyage 10 selon l'une quelconque des revendications 1, 2, 3, 4 ou 5 comprenant : une pluralité de touffes individuellement espacées (15) de fibres d'étoupe étant disposées en rangées (30), lesdites rangées (30) étant orientées à plus ou moins 45 degrés dudit axe longitudinal (LA) et espacées par rapport à des rangées adjacentes (30) par un espace (31), ledit espace (31) ayant une largeur prise parallèle audit axe longitudinal (LA) ladite largeur étant supérieure ou égale en taille auxdites touffes (15).
  9. Article de nettoyage (10) selon une quelconque revendication précédente dans lequel lesdites touffes (15) augmentent en taille à mesure que ledit axe longitudinal (LA) se rapproche.
  10. Article de nettoyage (10) selon la revendication 9 dans lequel lesdites touffes (15) augmentent en taille et augmentent en pas à mesure que ledit axe longitudinal (LA) se rapproche.
  11. Article de nettoyage (10) selon l'une quelconque des revendications 1, 2, 3 ou 4 comprenant une pluralité desdites touffes (15) disposées en rangées (30) généralement perpendiculaires audit axe longitudinal (LA) et ayant des touffes (15) disposées sur ledit axe longitudinal (LA).
  12. Article de nettoyage (10) selon l'une quelconque des revendications 1, 2, 3, 4, 5, 6, 7, 8, 9 ou 10 dans lequel lesdites touffes (15) sont disposées en rangées (30) généralement parallèles audit axe longitudinal (LA) et ayant un espace entre elles.
  13. Article de nettoyage (10) selon la revendication 11 n'ayant pas de touffes (15) disposées sur ledit axe longitudinal (LA).
  14. Article de nettoyage (10) selon la revendication 12 dans lequel lesdites touffes (15) ont un pas différentiel pris dans une direction parallèle audit axe transversal (TA).
EP18779172.8A 2017-09-11 2018-09-11 Article de nettoyage à touffes de fibres d'étoupe à pas différentiel Active EP3681363B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/700,384 US11253128B2 (en) 2017-09-11 2017-09-11 Cleaning article with differential pitch tow tufts
PCT/US2018/050370 WO2019051456A1 (fr) 2017-09-11 2018-09-11 Article de nettoyage à touffes d'étoupe à pas différentiel

Publications (2)

Publication Number Publication Date
EP3681363A1 EP3681363A1 (fr) 2020-07-22
EP3681363B1 true EP3681363B1 (fr) 2021-07-14

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EP (1) EP3681363B1 (fr)
JP (3) JP2020529275A (fr)
CN (2) CN111093453A (fr)
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WO (1) WO2019051456A1 (fr)

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Publication number Publication date
US11253128B2 (en) 2022-02-22
WO2019051456A1 (fr) 2019-03-14
CN114305268A (zh) 2022-04-12
JP2020529275A (ja) 2020-10-08
US20220133118A1 (en) 2022-05-05
CN111093453A (zh) 2020-05-01
JP2023100937A (ja) 2023-07-19
JP2021192793A (ja) 2021-12-23
CA3071886C (fr) 2023-03-07
CA3071886A1 (fr) 2019-03-14
EP3681363A1 (fr) 2020-07-22
CN114305268B (zh) 2024-02-09
US20190075993A1 (en) 2019-03-14

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